www.roithn er - laser.com 1 rlt4 xx - 50cmg ? blue laser diode ? 4 0 0 - 470 nm, 5 0 mw ? single transverse mode ? to56 package , flat window maximum rating * (t case = 25c) parameter symbol values unit min. max. optical output power * 1 p max 100 mw reverse voltage v r 5 v allowable reverse current i r 1 a operating temperature * 1 t opr 0 + 60 c storage temperature t stg - 1 0 + 85 c soldering temperature (max. 3 s) t sol + 26 0 c * operating outside these conditions may damage the device * 1 operating at maximum ratings may influence the life time electro - optical characteristics (t case = 20 c ) parameter symbol values unit min. typ. max. peak wavelength p o 50 mw spectral width (fwhm) ? < 1 nm polarization te operating voltage v f 5.0 5.5 v threshold current i th 60 100 ma operating current i f 110 220 ma slope efficiency cw 0.5 0.7 1.2 w/a beam divergence (fwhm) parallel ?ii 7 deg. perpendicular ? 32 deg. life time (@ 10 mw ) 3000 5000 h it is advised to operate this laser diode at room temperature of 20c with good heat sinking. d escription rlt4 xx-5 0m g is a series of blue laser diode s , based on ingan quantum structures , available with peak wavelengths ranging from 400 nm to 470 nm, with a narrow peak wavelength tolerance of only +/ - 2nm. it features single transverse mode emission and wide operating temperature range of up to 60c . it is an efficient radiation source for many applications like laser projection , holography, metrology, or use in the biomedical field . rlt4 xx - 50cmg comes in 5.6 mm to - can package without pd . rev . 1. 0 11.05 .17
www.roithner - laser.com 2 performance characteristics optical output power vs. current / voltage operating voltage vs. operating current threshold current vs. case temperature peak wavelength vs. case temperature ( sample rlt425 - 50cmg) spectrum far field pattern ( sample rlt425 - 50cmg)
www.roithner - laser.com 3 electrical connection pin configuration bottom view outline dimensions all dimensions in mm precautions safety caution: laser light emitted from any laser diode m ay be harmful to the human eye . avoid looking directly into the laser diode?s aperture when the diode is in operation. note: the use of optical lenses with this laser diode will increase eye hazard esd caution always do handle laser diodes with extreme care to prevent electrostatic discharge , the primary cause of unexpected diode failure . to prevent esd related failures, it is strongly advised to always wearing wrist straps , and grounding all applicable work surfaces , when handling laser diodes operating considerations it is strongly advised to only operate this l aser diode with a current source. the current of a laser diode is an exponential function of the voltage across it. u sage of current regulated drive circuits is mandatory. laser diodes may be damaged by excessive drive currents or switching transients it is advised, to operat e the laser diode at the lowest temperature possible , and to never exceed maximum specifications as outlined in the datasheet . device degradation will accelerate with increased temperature. proper heat sinking will greatly enhance stab ility and life time of the laser diode ? all rights reserved the above specifications are for reference purpose only and subjected to change without prior notice . pin # function pin 1 ld anode pin 2 case (n.c.) pin 3 ld cathode
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